Lock



J. J. MEGIE ET AL LOCK Tiled Jan. 2a. 1926 INV EN TOR; Jesse f Ne yz'e arlfl Wade/1dr V pepper.

A TTORNEY' screw 27.

Patented July 19, 1 927. 2

} omen STATES r moses. MEGIEAND marinara: w rnnmlgou' ms nmmnngcearronnm- 1 Amm n 9, Je (W sae w the .CllTZLWlH'S fOIlTllll a. part of this apli'cation we have illustrated our invention as ,a shackle look but do not desire tojbc confined solely to that class of locks as the les- 5 sence of'our invention maybe appliedto door locks and other locks. 1"1 s;a side elevation partly in section of :a ,shacklelock embodying. .our invention. Fig. 2 is a (cross section .on the line2-2iof Fi l. is

to .an enlarged cross section on .tlieline3-3 of Fig. 1. "Figs. 45.5 and 6 are enlarged details of certain of the parts.

. Referring .to ,the drawings, the case or shell consists of the 7 side walls 1.0 and. 11 and end walls 12and13 :andrpieroed top Iwall 14 .911 formed integral, and removable pierced bottom wall"15.. 'End wall 13 has .a 1. 16 throngh which a screw17 is passed w 'ich screws into a threaded hole inwall 15 and 80 holdswall 15 positioned in the shell. This screw is fnaccessible when thelock ,is in locked pqsition as shown in 1. Shackle 1.8 has its..longer limb l passing through aperture. 19 "in the top wall. liassin 26 through lug 20. Which is integralwith en wall l2,,is a headed bolt 21 which screws into the end of the longer legof-the shackle and holds the longer leg from coming out through the top wall. The shorter leg joins ontathejlonger leg inithe usual manner being formed integral therewith and when the shackle is in its locked position projects through the top wall 1 L as shown in Fig. 1 and has two grooves 22 in the sides thereof, which grooves are entered by the ends of the U-shaped spring 23 that passes around the longer leg of the shackle. The bottom wall is provided with an inwardly projecting an nular lug 24 which has slots 25 and 26 that 4 extend almost its entire length and are on the central line of the shell. Projecting through lug 24 and extending to the top wall is the tumbler which is split and chambered (for a portion of its length as bestshown in 4 Figs. 1, 3 and 4.

For distinction the main part of the tumbler is numbered 25 andv will be called the body. The other part 26 which will be called the cover. is connected to the body by The tumbler has an outwardly extending ledge or head 29 that is received in a chambered recess in the bottom wall. The inner end of body 25" is reduced in size where it passes between the members of spring 23 and is rectangular in shape as best shown in Fig. 2, thereby when positioned holding spring 23 in place'afcljacent ,to'gthe twp 1$l1 iu ns b9d 25* a i 6 wh ch rejsts' anae inner emdsoz ill 24.

the tumbl r ispositioiijed the bottom no W 1 5 i merely h ld the-sway screw a.. h by adm s member n t erem'mni ,M umea within the amas ed portion of if e tiim'blerflare tumbler .gers offwhich thea re .lanyfldesirad number. We have shown threeas we: consider that a desirable number. L These'lfihgerslare ,fi l mfil p stes-ably i "csl from me abm fly ii iii d f na rate or {spilngjholdiing' portion. Bliior distinction calle ana m f Pieie ags i h ang to h b -r i ake 11 s s. n ers are of ,a lengthajust: equal to LtIl GthicKDQSsOf the tumbler an when mounted therein when the ilfockfis rocked tlaebodieszare projected Z5 lIi-to sloti25 and heldthereinjby,springsf33 which ane coiledaroundflarins .3 1', 7 when pertain at th. hamher an the rumbler whlrch; zis in txhepover isiwider, than, the portion in the body and is ,not so'deqp' in the Pers iee tt slQtf2 -;1 hs bv.lrormi f a ate sw wh rests w h .1 9 is oclged bcmg held fi erehy springs'f33.

A e s w tvie .?i2rr 'as ae es i e e- 34. In and are engaged by the Q key 35 when it is inserted in the lock. When the key is pushed into the lock it causes the ends of the fingers to register with the outer edges of the tumbler when the same can'be turned with the key thereby forcing the ends of spring 23 out of grooves 22 at which time spring 28 coiled around bolt 21 of the shackle forces the shorter end of the shackle out of the case and the lock is unlocked.

It will be seen from Fig. 2 that the end of body 25 that projects between the members of spring 23 is in shape a parallelogram which is longer than the width and that it can be turned only so that its length will be at an angle-to the members of the spring, whereb as soon as pressure on the key is release spring 23 returns the tumbler to its normal position and the key can be removed from the tumbler. By this construction a key of an exact shape for the tumbler fingers must be used.

If the various sections of the key are too narrow, bodies 30 will not be forced out of slot 25. If too wide the endsv of 31 will be forced into slot 26. In either case the lock could not be unlocked. It is, therefore, necessary with our construction that a perfect key must be used to unlock the look. It will also be seen that the tumbler must be returned to its normal position before the key can be withdrawn from the lock. The tumbler can be used in a door lock by having a pinion on the body which would engage with a rack on the locking bolt, a portion of the case corresponding to the bottom plate of our present lock.

Having described our invention we claim: 1. A shackle lock having imperforate side and end walls and a pierced top wall and a removable bottom wall, having a slotted annular projecting lug, means within the walls to secure the bottom wall detachably to the other walls, said securing means being accessible only through the top wall; a shackle mounted in said case for rotary and longitudinal movement, said shackle being composed of a longer and a shorter leg, said shorter leg having notches in thesides thereof a U shaped spring with in and adjacent to the top wall, the free ends of which engage in the notches of the shorter leg of the shackle when the lock is looked; a tumbler projecting within said walls, said tumbler having a circular outline except the inner end which terminates in a parallelogram which lies between the members of the spring, said tumbler having a chamber therein provided with oppositely disposed openings through the end walls of the chamber, and a key opening in the bottom thereof; and spring operated fingers in said tumbler, said fingersbeing adapted to have the ends held projecting into the groovefin the lug of the bottom wall when the lock is locked, said fingers having lugs adapted to be engaged by a key to retract the ends from the groove in the lugpf the bottom wall.

2. In a lock having a case, a rotating tumbler having a chamber therein opening through the side walls and bottom wall thereof, said chamber in part and said opening in the bottom wall forming a key way; tumed; and means to hold said tumbler revolubly mounted therein.

3. In a lock of the character described, a casing having imperforate side and end walls, a perforated top and a removable perforated bottom wall, said bottom wall having an annular slotted lug projecting into the casing; a revolvable tumbler mounted in said casing, said tumbler having a chamber therein with openings in the side walls and end wall; a shackle mounted for sliding movement of both legs in said casing and for rotary movement of the longer leg, the shorter leg having notches therein; a spring mount ed in said casing adapted to engage in the notches of the shackle and to be released from said notches by the movement of the tumbler; and fingers in said tumbler adapted to hold the tumbler from movement without the insertion therein of the proper key for said look.

In witness that we claim the foregolng we have hereunto subscribed our names this 14th day of January, 1925.

JESSE J. MEGIE. FREDERICK V. PEPPER. 

